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https://issues.apache.org/jira/browse/FLINK-2442?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14648406#comment-14648406
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ASF GitHub Bot commented on FLINK-2442:
---------------------------------------
GitHub user fhueske opened a pull request:
https://github.com/apache/flink/pull/963
[FLINK-2442] [fix] FieldPositionKeys support Pojo fields
Add support to select tuple fields which are Pojo types by field position
keys.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/fhueske/flink expKeys
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/963.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #963
----
commit 2d0773b4c35f130d090f7124a97195077e3baa4c
Author: Fabian Hueske <[email protected]>
Date: 2015-07-30T19:44:06Z
[FLINK-2442] [fix] FieldPositionKeys support Pojo fields
This closes #963
----
> PojoType fields not supported by field position keys
> -----------------------------------------------------
>
> Key: FLINK-2442
> URL: https://issues.apache.org/jira/browse/FLINK-2442
> Project: Flink
> Issue Type: Bug
> Components: Java API
> Affects Versions: 0.9
> Reporter: Fabian Hueske
> Assignee: Fabian Hueske
> Priority: Critical
> Fix For: 0.10, 0.9.1
>
>
> Tuple fields which are Pojos (or any other non-tuple composite type) cannot
> be selected as keys by field position keys.
> Something like
> {code}
> DataSet<Tuple2<Integer, MyPojo>> data = ...
> data.groupBy(1).reduce(...)
> {code}
> fails with an exception.
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